Self-organizing P2P overlay network applying dynamic landmark mechanism for contents delivery network

Namgung, Jung-ll; Shin, Soo Young; Park, Soo-Hyun; Lee, Lee-Sub; Jeong, Dongwon

doi:10.1109/sera.2005.59

Third ACIS Int'l Conference on Software Engineering Research, Management and Applications (SERA'05) 2005

DOI: 10.1109/sera.2005.59

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Self-organizing P2P overlay network applying dynamic landmark mechanism for contents delivery network

Jung-ll Namgung

Soo Young Shin

Soo-Hyun Park

et al.

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Cited by 2 publications

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Distributed Contents Delivery Network based on Home gateway for a Sustainable Service

Kim¹,

Yoon²,

Ko³

et al. 2008

The KIPS Transactions:PartA

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DCDN(Distributed Contents Delivery Network) as known the next generation of CDN is to exploit the resource of client PCs based on P2P technology to provide low cost, high scalability and high speed services when contents are delivered. This DCDN has two problems.One is that DCDN can't provide a sustainable service because client PCs are on/off irregularly and their on times tend to focus on specific time zone, and the other is that client PCs can not be accessed outside in DCDN if they are behind NAT or Firewall.In this paper, we present a distributed contents delivery network based on home gateway for a sustainable service. If home gateway is used in DCDN instead of client PC, it can solve the two existing problems of DCDN. That is, home gateway can provide a sustainable service because it is on during all day and it is not behind NAT and Firewall. The proposed method is implemented with ASUS WL-500GP, a wired/wireless router. Experimental results show the effectiveness of the proposed method compared to the existing method of DCDN.

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Distributed Contents Delivery Network based on Home gateway for a Sustainable Service

Kim¹,

Yoon²,

Ko³

et al. 2008

The KIPS Transactions:PartA

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Doughnut: An improved P2P Pastry Overlay Network with Efficient Locality and Caching

Kim¹,

Kwak²,

Chung³

2009

The KIPS Transactions:PartC

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Pastry overlay network is one of structured P2Ps using DHT(Distributed Hash Table). To reduce the number of messages among nodes, Rosary and LAR have been proposed by exploiting spatial locality and caching, respectively, in the Pastry. Rosary consists of Inter-Pastry and Intra-Pastry. A root node is assigned as a representative in each Intra-Pastry and it has the responsibility of Inter-Pastry and Intra-Pastry routing. Therefore, Rosary has several disadvantages; 1) low fault tolerance in case of root node failure 2) routing hop count increases because of the use of root nodes compared to the existing structured P2Ps, and 3) the communication load is concentrated in some specific areas. LAR has inefficient problems in that caching is not distributed among nodes in Intra-Pastry and caching is used by only nodes in the Intra-Pastry.In this paper, we propose an improved Pastry called Doughnut to overcome the above problems of Rosary and LAR. By dividing nodes with the local characteristics, the Doughnut consists of Inter-Pastry and Intra-Pastry, and all nodes have the responsibility of Inter-Pastry and Intra-Pastry routing. This results in that all nodes perform the role of the existing root node. This solves the problems of the reducing of fault-tolerance, the increasing of routing hop count, and the not-distributed communication load. Also Doughnut can use cache effectively because it guarantees the even cache distribution in local(Intra-Pastry) and the cache contents in local can be used in the other local. The proposed algorithm is implemented using simulator and the experimental results show the effectiveness of the proposed method compared to the existing method.

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Self-organizing P2P overlay network applying dynamic landmark mechanism for contents delivery network

Cited by 2 publications

References 8 publications

Distributed Contents Delivery Network based on Home gateway for a Sustainable Service

Distributed Contents Delivery Network based on Home gateway for a Sustainable Service

Doughnut: An improved P2P Pastry Overlay Network with Efficient Locality and Caching

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